毕业论文 太阳能路灯充放电控制器.pdf

Abstract ............................................................. II 第1章 绪论 .......................................................... 1 1.1 课题背景 ................................................................................................................... 1 1.2 光伏发电技术现状 ................................................................................................... 2 1.2.1国内外技术现状 .............................................................................................. 2 1.2.2光伏路灯控制器技术的现状 .......................................................................... 2 1.3 设计指标 ................................................................................................................... 3 1.4 设计思路 ................................................................................................................... 3 本章小结 .......................................................................................................................... 4 第2章 方案选择及单元电路的设计 ...................................... 4 2.1 方案选择及方框图 ................................................................................................... 5 2.1.1 方案选择 ......................................................................................................... 5 2.1.2 方框图 ............................................................................................................. 5 2.2 部分单元电路的原理 ............................................................................................... 6 2.2.1太阳能电池 ..................................................................................................... 6 2.2.2锂蓄电池的充电特性 ...................................................................................... 7 2.2.3 锂蓄电池温宿补偿 ......................................................................................... 8 2.2.4 控制器充放电电路 ......................................................................................... 9 2.2.4 MOS管驱动电路 .......................................................................................... 10 2.2.5 显示电路 ....................................................................................................... 11 2.3 本章小结 ................................................................................................................. 12 第三章 锂蓄电池电压电流的检测 ...................................... 12 3.1锂蓄电池电压的检测 .............................................................................................. 12 3.2 锂蓄电池电流的检测 ............................................................................................. 13 3.3本章小结 ........................................................................................................... 16 第四章 整机电路及其工作原理 ......................................... 16 4.1整机电路原理图 ..................................................................................................... 16 4.1.1 充电部分的控制 ........................................................................................... 17 4.1.2 放电照明部分的控制 ................................................................................... 18 4.2 整机工作原理 ........................................................................................................ 18 4.3本章小结 .................................................................................................................. 19 第五章 系统软件设计 ................................................. 20 5.1 设计思路 ................................................................................................................. 20 5.2系统主程序流程 ..................................................................................................... 20 5.3 初始化子程序 ......................................................................................................... 22
5.4 A/D转换子程序 ...................................................................................................... 22 5.5 显示子程序 ............................................................................................................. 22 5.6本章小结 .................................................................................................................. 22 结 论 .............................................................. 23 致 谢 .............................................................. 24 附录1 译文 .......................................................... 26 PICmicro 中档单片机系列 ............................................. 26 附录2 英文参考资料 .................................................. 31 PICmicro MID-RANGE MCU FAMILY ................................... 31 附件 3 系统的主程序代码 ............................................. 37